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Enhancement of Directivity of an OAM Antenna by Using Fabry-Perot Cavity

Abstract : The circular phased antenna array is a common way to generate waves bearing Orbital Angular Momentum (OAM) in the radio frequency band, but the directivity of this antenna is relatively low. To overcome this drawback, in this paper, we use a Fabry-Perot cavity to enhance the directivity of an OAM antenna based on a circular phased array of patch antennas. The Fabry-Perot cavity consists of a ground plane, an air cavity and a partially reflecting surface (PRS) made of metallic strips. Simulation results show that the OAM antenna achieves a directivity of 16.2 dB with an enhancement of 9.2 dB in E and H planes. Index Terms-orbital angular momentum, Fabry-Perot cavity, circular antenna array, patch antenna.
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https://hal.archives-ouvertes.fr/hal-01894329
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Submitted on : Friday, October 12, 2018 - 12:29:22 PM
Last modification on : Wednesday, April 27, 2022 - 4:29:13 AM
Long-term archiving on: : Sunday, January 13, 2019 - 1:43:26 PM

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  • HAL Id : hal-01894329, version 1

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W. Wei, K. Mahdjoubi, C. Brousseau, O. Emile, A. Sharaiha. Enhancement of Directivity of an OAM Antenna by Using Fabry-Perot Cavity. EuCAP2016 - European Conference on Antennas and Propagation, Apr 2016, Davos, Switzerland. ⟨hal-01894329⟩

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